Finding the Fourth Proportional to 1,438,452.08, 2,157,010.68 and 839,585.60
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Solution
The fourth proportional to 1,438,452.08, 2,157,010.68 and 839,585.60 is: 1,258,988.83
Step by Step Solution
- Step 1: Write the proportion equation
1,438,452.08 : 2,157,010.68 = 839,585.60 : x - Step 2: Convert to fraction form
1,438,452.08/2,157,010.68 = 839,585.60/x - Step 3: Cross multiply
1,438,452.08x = 2,157,010.68 × 839,585.60 - Step 4: Simplify right side
1,438,452.08x = 1,810,995,105,974.21 - Step 5: Solve for x
x = 1,810,995,105,974.21/1,438,452.08 - Step 6: Final answer
x = 1,258,988.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.